Food can become contaminated by bacteria from other foods. This type of cross-contamination is especially dangerous if raw foods come into contact with cooked foods.Here are some examples of food-to-food cross-contamination: 1  In a refrigerator, meat drippings from raw meat stored on a top shelf might drip onto cooked vegetables placed on lower shelf.ood can become contaminated by bacteria from other foods. This type of cross-contamination is especially dangerous if raw foods come into contact with cooked foods.
Best Answer: Putting batteries in the freezer or refrigerator doesn't necessarily prolong their life. Alkaline batteries stored at room temperature self discharge at a rate of less than two percent per year. So normally refrigerating or freezing them will only help maintain their charge by a tiny amount.
The chemistry in the exhausted battery didn't prevent the battery from freezing (the car was parked in a carport and the temperatures were going down to 0F.) When the battery froze, it was ruined. Batteries do age - and as they get older, they won't hold a charge. If your battery is old enough, replacing it might be the best solution. I recall hearing once that 5 years was a decent age for a battery. But if the charging system doesn't work - or if you keep hearing an UNUSUAL sound coming from the car long after you're accustomed to hearing it, then something more is wrong your car.